#143D7C#143D7C

#143D7C is a dark, moderate blue. Relative luminance 0.049; OKLCH L 37.0% C 0.117 H 259.1°. Best body text is #FFFFFF at 10.56:1 contrast (WCAG AA passes).

Color values

HEX	#143D7C
RGB	rgb(20, 61, 124)
HSL	hsl(216, 72%, 28%)
HSV	hsv(216, 84%, 49%)
CMYK	cmyk(83.9%, 50.8%, 0%, 51.4%)
CIE-LAB	lab(26.57, 11.02, -39.77)
CIE-LCH	lch(26.57, 41.27, 285.48°)
OKLab	oklab(37.04% -0.022 -0.1144)
OKLCH	oklch(37.04% 0.117 259.1)
XYZ	xyz(5.5940, 4.9408, 19.7237)
Luminance	0.0494 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#143D7C #7C5314

analogous

#14717C #143D7C #1F147C

triadic

#143D7C #7C143D #3D7C14

tetradic

#143D7C #7C1471 #7C5314 #147C1F

square

#143D7C #7C1471 #7C5314 #147C1F

split-complementary

#143D7C #7C1F14 #717C14

monochromatic

#040D1A #0B2347 #143D7C #1D57B1 #2D73DD

Accessibility & contrast

On white

10.56

#143D7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#143D7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #143D7C

10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##143D7C	#FFFFFF	#000000	##FFFFFF
##143D7C	1.00	10.56	1.99	10.56
#FFFFFF	10.56	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#18447E

Deuteranopia (green-blind)

#003A7B

Tritanopia (blue-blind)

#004C56

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #143d7c;
/* rgb */ color: rgb(20, 61, 124);
/* oklch */ color: oklch(37.0% 0.117 259.1);

Tailwind

colors: {
  custom: {
    50: '#6471a2',
    500: '#143d7c',
    950: '#000000',
  },
}

SCSS

$custom: #143d7c;
$custom-light: #6471a2;
$custom-dark: #000000;

JSON

{
  "hex": "#143d7c",
  "rgb": {
    "r": 20,
    "g": 61,
    "b": 124
  },
  "hsl": {
    "h": 216.346,
    "s": 72.222,
    "l": 28.235
  },
  "oklch": {
    "l": 0.37042,
    "c": 0.11651,
    "h": 259.1
  },
  "luminance": 0.04941
}

Semantic roles & 50–950 ramp

primary

#143D7C

secondary

#B2833A

accent

#A739EF

background

#F6F6FA

surface

#EBECF3

border

#C6C7CD

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #143D7C

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →